marketspace 
noun
1An arena within which commercial dealing takes place; a market.The research gurus, the Wall Street pundits, the investment bankers and lawyers thought they could restructure an industry from the outside by creating marketspaces everyone would have to play in....
- Work on the songs, try to figure out what will sell to the marketspace you are trying to penetrate and write/play accordingly.
- All who would have us believe that Linux will drive Microsoft from the marketspace, take note: The emperor has no clothes.
2 [mass noun] Commerce carried out by electronic means, especially via the Internet.